CVE-2019-25038
unbound: integer overflow in a size calculation in dnscrypt/dnscrypt.c
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Unbound before 1.9.5 allows an integer overflow in a size calculation in dnscrypt/dnscrypt.c. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited
** EN DISPUTA ** Unbound versiones anteriores a 1.9.5, permite un desbordamiento de enteros en un cálculo de tamaño en el archivo dnscrypt/dnscrypt.c. NOTA: El proveedor niega que esto sea una vulnerabilidad. Aunque el código puede ser vulnerable, una instalación de Unbound en funcionamiento no puede ser explotada de forma remota o local
A flaw was found in unbound. An integer overflow in dnsc_load_local_data function may lead to a buffer overflow of the allocated buffer if the size can be controlled by an attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.
CVSS Scores
SSVC
- Decision:Attend
Timeline
- 2021-04-27 CVE Reserved
- 2021-04-27 CVE Published
- 2024-05-14 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-190: Integer Overflow or Wraparound
- CWE-787: Out-of-bounds Write
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20210507-0007 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results | 2024-06-11 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2019-25038 | 2022-02-22 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1954796 | 2022-02-22 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Nlnetlabs Search vendor "Nlnetlabs" | Unbound Search vendor "Nlnetlabs" for product "Unbound" | < 1.9.5 Search vendor "Nlnetlabs" for product "Unbound" and version " < 1.9.5" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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